Increasing the frame buffer size

[Simos Xenitellis]

On Tue, Jan 6, 2009 at 5:10 PM, Dirk Hohndel <hohndel at infradead.org> wrote:
> On Tue, 06 Jan 2009 18:01:21 +0100
> Xavier Bestel <xavier.bestel at free.fr> wrote:
>
>> You can add a directive in your Xorg config file:
>>
>>       Virtual 1920 1200
>>
>> so that the maximum screen size is correct for you.
>>
>
> This used to have to go into the Display SubSection. Which is where I
> am struggling. I can't seem to create a config file that keeps the nice
> flexibility of having no config file (let the server figure everything
> out) and still allows me to have a Display SubSection...
> Once I have that, I seem to need a screen section which requires a
> Device section and a Monitor section and... it turns very inflexible.
>
> Any way around that?

I do not know what distribution you are using.
If you use Debian or Ubuntu, the dexconf utility
will put on demand the appropriate settings.

When you configure the multiple displays from
the GUI (System/Preferences/Screen resolution),
you will be prompted if you want to have this line added to xorg.conf.

Note also an issue with the 965,
http://bugs.freedesktop.org/show_bug.cgi?id=10479#c6
In order to enable compiz, the resolution should be < 2048x2048.
After that, you can change the size with xrandr.
This is probably a compiz issue rather than an intel driver issue.

The stub xorg.conf created by dexconf looks like

===========
Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
	SubSection "Display"
		Virtual	1920 1200
	EndSubSection
EndSection

Section "Device"
	Identifier	"Configured Video Device"
EndSection
===========